Schleswig-Holstein has a temperate climate with warm summers and cold winters.
Schleswig-Holstein has an average annual temperature of 9.4°C across all 63 cities, with approximately 767 mm of annual precipitation and average humidity of 86%. Temperatures peak in July and drop to their lowest in January, while rainfall is highest during summer months.
The warmest city is Trittau with average July highs of 29.0°C, while Schwarzenbek is the coldest with average January lows of -9.8°C. Humidity remains high throughout the year, especially during winter months, creating cold and damp conditions. These seasonal patterns make summer pleasant for travel, while winters can bring frost and occasional snowfall.
| Month | 🌤️ | High | Low | Avg | Humid % | Rain (mm) | Wind (m/s) | Solar (kWh/m²) |
|---|---|---|---|---|---|---|---|---|
| January | 🌤️ | 8.2°C | -8.0°C | 0.1°C | 94% | 68 | 4.4 | 0.60 |
| February | 🌤️ | 8.8°C | -6.8°C | 1.0°C | 91% | 52 | 4.2 | 1.20 |
| March | 🌤️ | 13.8°C | -4.2°C | 4.8°C | 87% | 55 | 4.0 | 2.40 |
| April | 🌤️ | 18.7°C | -1.5°C | 8.6°C | 82% | 44 | 3.4 | 4.00 |
| May | 🌤️ | 23.0°C | 2.6°C | 12.8°C | 80% | 57 | 3.3 | 5.10 |
| June | ☀️ | 25.8°C | 7.2°C | 16.5°C | 80% | 72 | 3.3 | 5.30 |
| July | ☀️ | 27.3°C | 9.9°C | 18.6°C | 80% | 76 | 3.2 | 5.10 |
| August | ☀️ | 27.2°C | 9.8°C | 18.5°C | 81% | 70 | 3.2 | 4.30 |
| September | 🌤️ | 23.2°C | 6.7°C | 14.9°C | 83% | 65 | 3.5 | 3.00 |
| October | 🌤️ | 18.6°C | 1.7°C | 10.2°C | 88% | 72 | 3.8 | 1.60 |
| November | 🌤️ | 12.8°C | -2.6°C | 5.1°C | 93% | 65 | 3.8 | 0.70 |
| December | 🌤️ | 9.2°C | -6.3°C | 1.5°C | 94% | 71 | 4.0 | 0.40 |
Showing average climate conditions across 45 years (1981–2025) · averaged across all 63 cities in Schleswig-Holstein
🧥 Expect frosty nights and below-freezing temperatures during this Cold Winter period.
🌤️ Conditions are ideal for outdoor activities throughout the day in this Mild Summer.
☔ Rainfall is spread across the year with no sharply defined wet season.
Region-wide monthly averages across 63 cities · 1981–2025 · °C
Temperatures rise steadily from spring, peak in July, and gradually decline through autumn into winter.
These seasonal patterns make summer pleasant for travel, while winters can bring frost and occasional snowfall.
Region-wide monthly rainfall · 1981–2025 · mm/month
💧 Humidity peaks at 94% in December · annual avg 86%
Monthly averages · 1981–2025
Across 45 years, Schleswig-Holstein's temperature shows a slight warming trend over the past decade. 2024 was the warmest year overall and 1987 the coolest.
The warmest year on record was 2024 (avg: 11.3°C), while the coldest year was 1987 (avg: 7.3°C).
Averaged across all 63 cities in Schleswig-Holstein · Last 30 years · °C
Averaged across all 63 cities in Schleswig-Holstein · Last 30 years · mm/year
🔥 hottest · ❄️ coldest · 🌧️ wettest
ℹ️ Values are averages across all 63 cities in Schleswig-Holstein for each year.
| Year | Min Temp | Avg Temp | Max Temp | Rainfall (mm) | Avg Humidity | Avg Wind |
|---|---|---|---|---|---|---|
2025 | 1.9°C | 10.8°C | 19.6°C | 668 | 85% | 3.5 m/s |
2024 | 3.0°C | 11.3°C | 19.5°C | 968 | 87% | 3.7 m/s |
2023 🌧️ | 1.9°C | 10.5°C | 19.2°C | 1002 | 85% | 3.8 m/s |
2022 🔥 | 1.9°C | 10.9°C | 19.9°C | 717 | 84% | 3.7 m/s |
2021 | 1.4°C | 10.3°C | 19.1°C | 807 | 85% | 3.5 m/s |
2020 | 2.4°C | 10.8°C | 19.2°C | 736 | 83% | 3.8 m/s |
2019 | 2.0°C | 10.7°C | 19.4°C | 711 | 83% | 3.7 m/s |
2018 | 0.7°C | 10.3°C | 19.8°C | 526 | 84% | 3.5 m/s |
2017 | 1.7°C | 10.0°C | 18.2°C | 873 | 86% | 3.7 m/s |
2016 | 1.6°C | 10.0°C | 18.4°C | 630 | 86% | 3.5 m/s |
Showing 1 to 10 of 45 years
All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources), a NASA project providing solar and meteorological data for renewable energy, building efficiency, and agricultural research.
